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Monday, 12 June 2017

Environment - solid waste disposal

Environment - solid waste disposal

Solid waste includes any garbage, refuse, sludge from a wastewater treatment plant, water supply treatment plant, or air pollution control facility and other discarded materials including solid, liquid, semi-solid, or contained gaseous material, resulting from industrial, construction, commercial, mining and agricultural operations, and from community activities.

Management of waste includes:
Ø Classification of waste
Ø Segregation & Sorting of waste
Ø Collection of waste
Ø Transportation of waste
Ø Storage of waste
Ø Treatment of waste
Ø Disposal of waste
The waste should be sorted and segregated at the source of generation in the below mentioned colour container or bins

Integrated solid waste management: 


 

Waste Prevention:

Waste prevention also called “Source Reduction” seeks to prevent waste from being generated. Waste prevention strategies include using less packing, designing products to last longer, and reusing products and materials. Waste prevention helps reduce handling, treatment and disposal costs and ultimately reduces the generation of methane.


Recycling and composting:


Recycling is a process that involves collecting, reprocessing and/or recovering certain waste materials (e.g., glass, metal, plastics, and paper) to make new materials or products. Some recycled organic materials are rich in nutrients and can be used to improve soils. The conversion of waste material in to soil additives is called composting. Recycling and composting generate many environmental and economic benefits. For example they produce soil-enhancing compost, and reduce greenhouse gas emissions.

Disposal (Land filling and Combustion):


These activities are used to manage waste that cannot be prevented or recycled. One way to dispose of waste is to place it in properly designed, constructed and managed landfills, where it is safely contained. Another way to handle this waste is through combustion. Combustion is the controlled burning of waste, which helps reduce its volume. If technology is available, properly designed, constructed, and managed landfills can be used to generate energy by recovering methane. Similarly combustion facilities produce steam and water as by-product that can be used to generate energy.



Reuse, Reduce, Recycle and make the earth a better place to live in





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